Well i put it at -2 degrees and it done great. I went 8.04 in the 8th mile on the stock tires with a 1.87 60'. I only had 800lbs bottle pressure. I just really wondered if i took too much timing out or what. This is my first time to use nitrous so im just tryn to be safe.
Did you have a tune that put more timing in? You can run a 75 on stock timing. Get the bottle pressure right and a purge valve and you will pick up a tenth or so. You want the bottle pressure at 1000 before you start your burn out, then use the purge valve on the first bulb purge it down to 950-975.